Type-writing machine.



A. W. SMITH.

TYPE WRITING MACHINE.-

APPLIOATION FILED BEPT.23, 1908. 974,836, Patented Nov. 8, 1910.

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INVENTUR:

HlE/-\ TTEI R'NEY WITNESSES:

A. W. SMITH.

TYPE WRITING MACHINE.

APPLICATION FILED SEPT. 23, 1908.

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HIEATTURNEY A. W. SMITH. TYPE WRITING MACHINE.

APPLICATION TILED SBPT.23, 1908.

Patented N018, 1910.

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WITNEEEES:

W W A HIEATTEIRNEY ARTHUR W. SMITH, NEW YORK, N. 'Y.,. ASSIGNOR T0 YOST WRITING MACHINE COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Nov. 8, 1910.

Application filed September 23, 1908. Serial No. 454,358.

To all whom it may concern:

Be it known that I, ARTHUR W. SMITH, citizen of the United States,and resident: of

the borough of Manhattan. city of New York, in the county of New York and State of New York, have invented certam new and useful Improvements in Type-lvriting Machines,-of which the following is a specification.

My invention relates to typewriting machlnes and more particularly to tabulating mechanism. a

The object of my invention is toprovide,

an understanding of my invention being omitted. Fig. 2 1s a horlzontal sectional view of the same taken on the line of Fig. l and looking in the direct-ion of the arrow at. said line. Fig. 3 is a fragmentary detail plan View showing the stops and some of the associated parts. Fig. .4 is a detail front view partly in section showingthe arrangement of the key levers and the universal bar of the. releasing mechanism. Fig. 5 is a detail perspective view of the universal bar and part of the carriage releasing mechanism.

I have illustrated my invention in the present instance in a front-strike machine although it should be understood that the invention may be embodied in various styles of typewriting machines. 1

The frame of the machine comprises side plates 1 formed with corner posts 2 which support a top plate 3. A rear connecting plate 4 is connected to the side plates. The side plates support fixed guide rails 5 grooved on 'oppositesides thereof for cooperation with anti-friction balls or-rollers.

6 which are also received in oppositely disposed grooved rails or bars 7 forming part of a carriage truck 8 on which a platen frame 9 is supported. The platen frame has bearing openings which receive a platen shaft 10 that carries a cylindrical platen 11.

The construction of the carriage and the parts associated therewith are or may be essentially the same as those shown in the ap plication of Oscar \Voodward, Serial No. 362,734, filed March 16th, 1907'. The carriage truck is provided with upwardly extending risers orv lugs 12 which support a column stop bar 13 slotted on opposite sides thereof to provide interdental spaces 14 in which bifurcated column stops 15, 16, 17 and 18 are received. These column stops with their contact faces 'in different parallel planes aregraduated, projecting rearwardly varying distances at the contact or stopping portions thereof as indicated in Fig. 3. Column selecting stops 19, 20, 21 and 22 are provided, each for cooperation with an individual column stop. In the present instance these column selecting stops 19 to 22 are formed as integral parts of four bell crank key levers 23, the stops consisting of the upper ends of the upright members of said bell crank key lovers. The forward ends' of these bell crank levers are reduced at 24 and extend through opei'iings in key stems 25 provided at the upper ends thereof with column selecting key heads 26. The key stems are received and guidedin openings in an angular plate 27 secured by screws 28 to inwardly projectin lugs 29 which extend from the frame of the machine. The lower ends of the key stems like wise extend through and are guided in openings in a'guide plate 30 secured to inwardly extending lugs31 on the side plates of the frame. Each key ste'mis tapped at its lower end to receive a headed screw 32 by which the key stems are prevented from being withdrawnfrom the guide plate 30. The forward horizontal end portions of the bell crank levers are fanned outwardly as indicated in Fig. 2 in orderto provide sufficient space for the keys, although the stopping port-ions 19 to 22 of the levers are closely assembled as indicated in Fig. 3, and are guided in slots 32 in the top plate of the machine. The forward end portions of the bell crank levers are bent upwardly as indicated at 33 and extend over a universal bar 34 for the carriage release mechanism. versal baris formed as a front cross bar of a rectangular frame having side arms united by a rear cross bar 36 and provided with a rearwardly extending arm 37. The side arms are apertured at to receive pivots 39 projecting outwardly from black ets 40 extending downwardly and forwardly from a cross bar 41 carried by or formed as a part of the carriage frame. This cross bar carries or has formedas a part thereof a depending bearing portion 42 provided with slots in which the bell crank keylevers are received, a pivot 43 extending through the bearing portion and through bearing-openings in the bell crank levers to pivotally support the levers. The forward ends of the bell crank levers extend over the universal bar 34 and are arranged at the same elevation. The bar itself -is step-shaped to provide contact faces 44, 45, 46 and 47 at varying distances from the series of key thereby in one direction. ejctmg arms 64 cooperate with leaf springs by means ofwhich the feed rack is norlevers as clearly indicated in Fig. 4. Stop pins 48 extend forwardly from the universal ,bar for coiiperation with the guide plate 30 to limit the universal bar and the parts connected therewith in the downward movement of the universal bar. An upwardly extending link 49 is connected tothe rearwardly projecting arm 37 of the universal bar frame and to a forwardly projecting crank arm 50 of a swinging member 51 pivoted at 52 to a bracket 53 secured to a cross bar 53 fixed to the frame of the machine. The member '51 receives a shaft which turns therein and is provided at its upper end with a pinion 54 and at its lower end with a rotating device which turns.

within a drum 55 carried by or formed a part of the device 51. This mechanism constitutes a combined carriage releasing and carriage retardingdevice and may be constructed in themanner shown and described in the application of Oscar Vvoodward, Serial No. 415,372, filed Feb. 11, 1908, although, so far as the present invention is concerned, any suitable carriage releasing mechanism maybe employed. A'feed pinion 56 is connected to the upper end of a shaft 57 connected at its lower end to suitable feed mechanism (not shown). The feed mechanism may be of the same general character as that disclosed in the application of Oscar Woodward, Serial No. 415,373, filed Feb. 11, 1908. .The feed pinion 56 is adapted to mesh with a feed rack 58 carried by depending arms 59 pivoted at 60 to lugs 61 which project downwardly from the carriage truck. F orwardly extending arms 62 coiiperate with screw stops 63 to limit the movement of the arms and the rack carried Rearwardly ro- This uni--- mally pressed into engagement with its feed pinion 56.

An actuation of one of the-column selecting keys 26 is effective to move the associated bell crank lever against the force of its restoring spring 23, Theeflect of this is to move the associated column selecting stop forwardly a given distance into the path of the column stop 15, 16, 17 or 18 with which the particular column selecting stop which has been actuated co-ac'ts. The extent of forward movement given to the different column selecting stops is determined by the universal bar 34 which is arrested through the cotiperation of the stops 48 with the guide plate 30 and which arrests the actuated column selecting stop lever and the parts controlled thereby. Thus, for instance, if the column selecting key 26 controlling the column selecting stop 21 be actuated the effect will be to bring the lever for said stop (which is the second from the right) into contact with the face or stop 45 on the universal bar after a slight movement of the lever has taken place. As the forward end of the lever continues to de scend it will carry the universal bar with it until the universal bar is arrested by the cooperation of the stops 48 with the guide plate 30. This arrest of the parts is effected when the column selecting stop 21- has been moved far enough forward to co-act with the coluann stop 17 as shown in Fig. 3, although it remains out of the path of the column stops l5 and 16 and when the carriage is released the columns controlled by the stops 15 and 16 will be skipped and the carriage arrested after a single run at the paper columnar field. It will be understood that the universal bar is not taken up by the actuation of the lever until the lever has received a partial movement to compensate for the difference in the throw of the different column selecting levers and so that the carriage releasing mechanism will not be actuated until at or about the time that the column selecting stop is interposed in the path of the column stop with which it coacts. A depression of the column selecting key is effective toelevate the link 49, thus.

transmitting movement to the device 51 to turn it on its pivot 52, thus moving the pinion 54 into engagement with the feed rack and forcing the feed rack out of engagement with its pinion 56, thereby releasing the carriage from control of the escapement or step-by-step feed mechanism and placing it under control of the rotary carriage retarding device which rotates within the drum 55. When the carriage is thus releasedit will be moved by the power applied thereto by a spring drum "66 connected to the carriage by a band 67 and the carriage will continue to move from right to left until arrested by the cotiperation of the erases column selecting stopwi'th the particular column stop with which it co-acts. a It willbe observed that although there is a uniform extent of movement of the universal bar efiected by all of the key levers, nevertheless, the stepped face of the universal bar provides differential mechanism 'Whereby different extents of movement It willalso be observed that each column fee selecting stop has a uniform or fixed extent of movement although the difi'erent column selecting stops move different distances and notwithstanding the movement of the column selecting stops and their actuating levers difierent distances the carriage ,is always released at the proper instant, at or about the time the stops are brought' into operation. The construction is such that there is no liability of an overthrow, or movement of the selecting mechanism to a position other than that intended; each column selecting key controlling its individually operable column selecting stop andeach of said stops being moved only a. predetermined distance to co-act with its particular column stop.

Various changes may be made without departing from the spirit and scope of my invention.

What I claim. as new and desire to secure by Letters Patent is z i 1. In a typewriting machine, andin tabulating mechanism, the combination of a carriage, step-by-step feeding mechanism there-l for, a set of column stops, a plurality of costops being cooperative only with certain of said column stops to arrest the carriage in a predetermined columnar field. after the carriage has been released from its step-bv-step feedin mechanism, intermediate fields .being skipped or passed, and variably-actuated carriagemeleasing means.

2. In a typewriting machine and in tabulating mechanism, the combination of a carriage, step-by-step feeding mechanism therefor, a set of column stops having contact surfaces in different paths, a plurality of cooperating stops, each of said last recited stops being cooperative only with certain of said column stops to arrest the carriage in a predetermined columnar field after the carria c has been released from its step- (y-step ding mechanism, intermediate e1 s being skipped or passed, and variably-actuated carriage-releasing means.

3. In a typewriting machine and in tabulating mechanism, the combination of a carriage, step-by-step feeding mechanism therefor, a set of column stops, a plurality of co- 0 crating stops having-unvaryin extents of movement, each of said last recited stops being cooperative only with certain of said column stops to arrest the carriage in a predetermined columnar field after the'carriage has been released from its step-by-step feed ing mechanism, 7 intermediate fields being skipped or passed, and -'variably-actuated carriage-releasing means.

4c. Ina typewriting'machine and in tabulating mechanism, the combination of a carriage, step-by-step feeding mechanism there for, a setof columnstops, a plurality of cooperating stops, each of said last recited stops being cooperative only with certain of said column stops to arrest the carriage in a predetermined columnar field'afte'r the carriage has been released from its step-by-step feeding mechanism, intermediate fields being skipped or passed, keys for actuating said cooperating stops, a universal bar taken up at different points in the depressions of said keys depending upon the key actuated, and carriage releasing mechanism controlled by said universal bar, said universal bar and releasing mechanism enabling the carriage to be released at I a substantially uniform period with reference to the bringing of the stops into cooperative relation irrespective of which of the stops are brought into cooperative relation. I

5. In a t-ypewriting machine and in tabulating mechanism, the combination of a carriage, step-by-step feeding mechanism therefor, a set of column stops, a plurality of cooperating stops, each of said last recited stops being coiiperatlve-only with certain of said column stops-to'a-rrestthe carriage in a predetermined columnar field after the carriage has been released fromits ste -by-step feeding mechanism, intermediate elds being skipped or passed, keys for actuating said cooperating stops, a universal bar having a uniform extent of movemenhsaid universal bar being taken up at different points in the actuation of said keys depending upon the key actuated, means for limiting the movement of the universal bar and thereby limiting the movement of the keys and the stops controlled thereby, and carriage releasing mechanism controlled by said universal bar, said universal bar and carriage releasing mechanism enabling the carriage to be released at a substantiall uniform period with reference to the bringing of the stops into cooperative relation lrrespective of which of the. stops are brought into cooperative relation.

6. In a typewriting machine, and in tabulating mechanism, the combination of a carriage, step-by-step feeding-mechanism there for, a set of column stops, a plurality of cooperating stops, each of said last recited stops being cooperative only with certain of said column stops to arrest the carriage in a predetermined columnar field after the carriage has been released from its step-by-step feeding mechanism, intermediate fields being skipped or passed, key controlled tabulator levers for actuating said cooperating stops, a universal baractuated by said levers and having a uniform extent of movement, difierential means whereby said universal bar is taken up at different points in the ac tuation of the different levers, means for limiting the movements of the universal bar andthereby limiting the movements of the different levers and the different stops controlled thereby, carriage releasing means controlled b said universal bar, said universal bar, ifferential means and carriage releasing means enabling the carriage to be released at a substantially uniform period with reference to the bringing of the stops into cooperative relation irrespective of which of the stops are brought into co'operative relation.

7 In a typewriting machine and in tabulating mechanism, the combination of a power-driven carriage, a series of graduated column stops carried thereby,' a series of bell-crank key levers carrying stops movable different distances and each movable an un varying distance and cooperative only with certain of said column stops, a universal bar movable a uniform distance by the different levers, the different levers taking the universal bar up at different periods in the operation thereof, and carriage releasing mechanism controlled by said universal bar.

8. In atypewriting machine and in tabulating mechanism, the combination of a power driven carriage,,a series of graduated column stops carried thereby, a series of bell crank key levers carrying stops movable different distances and each movable an unvarying distance and cooperative 'only with certain of said column stops, a universal bar having a stepped shaped contact face with which said levers cooperate, and a carriage {)eleasing device controlled by said universal 9. In a typewriting machine and in a tabulating mechanism, the combination of a power driven carriage, a series of raduated column stops carried thereby, a series of hell crank key levers carrying stops movable different distances and each movable an unvarying distance and cooperative only with certain of said column stops, a universal bar movable by said key levers a uniform distance by the difierent levers, the different levers taking the universal bar up at difierent periods 1n the operation thereof, carriage releasing mechanism controlled by said universal bar, and arresting means for limiting the movement of the universal bar, thereby arresting said levers and the stops controlled thereby.

10. In a typewriting machine and in a tabulating mechanism, the combination of a power driven carriage, a series of graduated column stops carried thereby, a series of bell crank key levers carrying stops movable different distances and each movable an unvarying distance and cooperative only with ARTHUR w. SMITH.

Witnesses:

CHARLES E. SMITH, E; M. WELLS. 

